Answer:
a. Additional Paid in Capital will increase by $20,000.
Step-by-step explanation:
Treasury stock is the share of the company issued earlier and bought-back. It can be reissued and cancelled by the company.
Journal Entry for Re-acquirement of shares
Dr. Treasury Stock (10,000 x $10 ) $100,000
Cr. Cash $100,000
Re -issuance of Share
Dr. Cash (10,000 x $12 ) $120,000
Cr. Additional Paid-in Capital $20,000
Cr. Treasury Stock (10,000 x $10 ) $100,000